Tubular structure.



' L. ATWOOD.

TUBULAR STRUCTURE.

APPLICATION PILBDJUNB 13, 1906.

'l 910,891'. Patented Jan. 26, 1909 eegggeugegg@ 4 l' frz @cruzan srA sn ATEN oEEIoE.

LEoNAED ATwooD, or PHILADELPHIA, PENNSYLVANIA, AssIGNoR oEoNE-FOURTH'TO JOHN M. O. HEWITT, OF

PHILADELPHIA, PENNSYLVANIA.

TUBULAR STRUCTURE.

i Specification of Letters Patent.

Patented Jan. 2e, 1909.

Application filed June 13, 1906. Serial No. 321,564.

ar cables for power transmission, and shifting ropes for elevators where it is desired to increase the diameter without increasing the weight of the rope in order to obtain a better gripping surface.

T e invention can be used for all purposes whedrea substantial tubular structure is des1re The object of my invention is to malte a tubular structure of woven fabric having embedded in the wall thereof s irally twisted wire or wires protected on a sides b the woven or braided fabric; such wires eing spirally twisted or corrugated previous to t e manufacture of the tu ular structure. y

.My invention is fully shown in the accompanying figure of drawing representing a side elevation of a tubular structure made in accordance with my invention, in which two cross-wires are shown forming a mesh; the wires being spirally twisted or corrugated so as to prevent them moving in the fabric.

Referring to the drawin a re resents the fibrous wa threads andi the fibrous weft threads of t e woven or braided fabric, in the body or wall of which is embedded the rnetallic portion of the structure in the form of the corrugated or twisted wires c and d; the wires c being warp wires, while the Wires d are weft Wires. By using a woven or braided fabric, I am enabled to so incorporate the metal portion of the structure with the brous portion as to thoroughly protect such metal portion, and it will be noticed that the fibrous warp and weft threads alternate with the metal warp and weft wires, so that there is a cushion between each convolution of the wires.

The purpose of having both of the wire portions corrugated issalat when the two corru-V gated sections are together in the one structure the wires will not slip, but will retain their position under all conditions.

The Wire is preferably of spring metal S0 that the structure will always assume its normal position.

v The hollow tubular structure may have its ends joined to form a ring and can be in- Hated if desired to be used as a tire for ve'- hicles, or it may be filled with any material, such as compressed wood pulp, sponge, asbestos, or other suitable fiber, to resist compres-v sion.

It may also-be used as a cover to reinforce and increase the strength of rope, or to protect rope from compression or climatic conditions. A section may be closed at both ends so that itwill be capable of being floated; the fabric being made Waterproof in this instance. It may be used to great advantage as a towing rope for vessels, where it is desired that the rope shall float on the surface of thewater rather than sink, which is the case With the ordinaryv solid towing rope.

I claim:

1. The combination in woven hose and similar tubular structures made of iibrous material, of a wire previously corrugated and woven spirally throughout the wall of the structure and forming one of the wefts of the same, the corrugations of said Wire permitting a certain amount of yield and a lowing the tube to be expanded when nip les or other attachments are to be secured t ereto.

2. A woven tubular structure having fibrous warp and weft threads with longitudinal warp and spiral weft wires crossing each other and forming the Wall of the same, both of said wires beiner to Weaving, substantially as and for the purpose set forth.

3. The combination, in Woven hose and similar tubular structures, of -two sets of Wires previously corrugated, one set of wires being woven spirally and the other -set being woven longitudina ly so as to cross each other, the corrugations permitting a certain amount of yield and allowing the tube to be expanded when nipples or other attachments are to be secured thereto.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

LEONARD ATWOOD.

Witnesses:

WILL. A. BARR, JOs. H. Kram.

corrugated previous 

